UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM 11 - K

 ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

(Mark One)

(X)  Annual Report  Pursuant to Section 15(d) of the Securities  Exchange Act of
     1934

                   For the fiscal year ended December 31, 2003

                                       Or

(  ) Transition  Report  Pursuant to Section 15(d) of the Securities  Exchange
     Act of 1934

For the transition period from ____________ to

Commission file number:  0-21318

     A.   Full title of the plan and the address of the plan, if different  from
          that of the Issuer named below.

                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

     B.   Name of issuer of the  securities  held  pursuant  to the plan and the
          address of its principal executive office:

                O'Reilly Automotive, Inc.
                233 South Patterson
                Springfield, Missouri 65802









                              REQUIRED INFORMATION

     The following  audited  financial  statements  are being  furnished for the
O'Reilly Automotive, Inc. Profit Sharing and Savings Plan (the "Plan"):

     1.   Statements  of Net Assets  Available  for  Benefits as of December 31,
          2003 and 2002.

     2.   Statement of Changes in Net Assets Available for Benefits for the year
          ended December 31, 2003.


                                    EXHIBITS

Exhibit No.     Description
-----------     --------------------------------------------------------
23.1            Consent of Independent Registered Public Accounting Firm


                                   SIGNATURES

     The Plan.  Pursuant to the  requirements of the Securities  Exchange Act of
1934, the trustees (or other persons who  administer the employee  benefit plan)
have  duly  caused  this  annual  report  to be  signed  on  its  behalf  by the
undersigned hereunto duly authorized.


                                   O'REILLY AUTOMOTIVE, INC.
                                   PROFIT SHARING AND SAVINGS PLAN


                                   By:/s/ James R. Batten
                                   ------------------------------
                                   Executive Vice President and CFO
                                   O'Reilly Automotive, Inc.



                        Financial Statements and Schedule

                              (Modified Cash Basis)

                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

                 December 31, 2003 and 2002, and the year ended
                                December 31, 2003
          with Report of Independent Registered Public Accounting Firm


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                              Financial Statements
                                  and Schedule

                 December 31, 2003 and 2002, and the year ended
                                December 31, 2003




                                    Contents

Report of Independent Registered Public Accounting Firm........................1

Audited Financial Statements (Modified Cash Basis)

Statements of Net Assets Available for Benefits................................2
Statement of Changes in Net Assets Available for Benefits......................3
Notes to Financial Statements..................................................4

Supplemental Schedule (Modified Cash Basis)

Schedule H, Line 4i - Schedule of Assets (Held at End of Year)................10

Exhibit Index ................................................................11



                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

             Report of Independent Registered Public Accounting Firm

The Plan Administrators and Participants
O'Reilly Automotive, Inc.
Profit Sharing and Savings Plan

We have audited the accompanying statements of net assets available for benefits
(modified  cash  basis) of the  O'Reilly  Automotive,  Inc.  Profit  Sharing and
Savings  Plan (the  Plan) as of  December  31,  2003 and 2002,  and the  related
statement of changes in net assets available for benefits  (modified cash basis)
for the year  ended  December  31,  2003.  These  financial  statements  are the
responsibility  of the Plan's  management.  Our  responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

As described in Note 1, the financial statements and supplemental  schedule were
prepared on the  modified  cash basis of  accounting,  which is a  comprehensive
basis of accounting other than accounting  principles  generally accepted in the
United States.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects, information regarding the Plan's net assets available for
benefits  (modified  cash basis) as of December  31, 2003 and 2002,  and changes
therein (modified cash basis) for the year ended December 31, 2003, on the basis
of accounting described in Note 1.

Our audits were performed for the purpose of forming an opinion on the financial
statements taken as a whole. The accompanying  supplemental  schedule  (modified
cash basis) of assets (held at end of year) as of December 31, 2003 is presented
for purposes of additional  analysis and is not a required part of the financial
statements  but is  supplementary  information  required  by the  Department  of
Labor's Rules and  Regulations  for Reporting and Disclosure  under the Employee
Retirement  Income Security Act of 1974. This  supplemental  schedule  (modified
cash basis) is the  responsibility  of the Plan's  management.  The supplemental
schedule  (modified  cash basis) has been  subjected to the auditing  procedures
applied in our audits of the financial statements and, in our opinion, is fairly
stated in all material respects in relation to the financial statements taken as
a whole.

                                            /s/ Ernst & Young LLP
                                            -----------------------
Kansas City, Missouri
June 8, 2004

                                       1


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

                 Statements of Net Assets Available for Benefits
                              (Modified Cash Basis)




                                                        December 31,
                                                 2003                  2002
                                              --------------------------------
                                                             
 Assets:
 Investments, at fair value (Note 3)          $81,848,066          $58,676,893
                                              --------------------------------
 Net assets available for benefits            $81,848,066          $58,676,893
                                              ================================


 See accompanying notes.

                                       2


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

            Statement of Changes in Net Assets Available for Benefits
                              (Modified Cash Basis)

                          Year ended December 31, 2003



Additions:
                                             
 Dividend and interest income                   $     439,661
 Contributions:
  Rollovers from other plans                          701,629
  Employer                                          3,127,834
  Employee                                          4,737,728
                                                -------------
                                                    8,567,191
                                                =============
 Net realized and unrealized appreciation
  in fair value of investments (Note 3)            20,020,028
                                                -------------
 Total additions                                   29,026,880


Deductions:

 Distributions to participants                      (5,855,707)
                                                --------------
  Net increase                                      23,171,173
  Net assets available for benefits,
   at beginning of year                             58,676,893
                                                --------------
  Net assets available for benefits,
   at end of year                               $   81,848,066
                                                ==============



 See accompanying notes.

                                       3


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                          Notes to Financial Statements

                                December 31, 2003


1.   Summary of Significant Accounting Policies

The  following  is a  summary  of the  significant  accounting  policies  of the
O'Reilly  Automotive,  Inc. (the "Company") Profit Sharing and Savings Plan (the
"Plan"):

Basis of Presentation

The  accompanying  financial  statements have been prepared on the modified cash
basis of accounting,  which is a  comprehensive  basis of accounting  other than
generally accepted accounting  principles.  Under this basis,  contributions are
recorded  when  received  rather  than in the period to which they  relate,  and
expenses are recorded when paid rather than when incurred.

Valuation of Investments

The value of investments in common and collective trusts,  registered investment
company  funds and  O'Reilly  Automotive,  Inc.  common stock is based on quoted
market values received from SunTrust Bank, Central Florida,  N.A.  (SunTrust) on
the last  business day of the plan year.  Participant  loans are valued at their
outstanding balances, which approximates fair value.

Administrative Expenses

The Plan pays all administrative expenses.

Use of Estimates

The preparation of financial  statements  requires  management to make estimates
and assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.

                                       4


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                    Notes to Financial Statements (Continued)

2.   Description of the Plan

The following  description of the Plan is provided for general information only.
Participants should refer to the plan agreement for a more complete  description
of the Plan's provisions.

The Plan is a defined contribution pension plan providing retirement benefits to
substantially  all  employees  of  the  Company  who  have  attained  age 21 and
completed six months. and The Plan is sponsored by the Company and is subject to
the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

The  Plan  allows  participants  to  contribute  up  to  100%  of  their  annual
compensation  to the Plan up to $12,000.  The Company has elected to  contribute
50%  of  each  employee's  voluntary  contribution  up to 2% of  the  employee's
compensation and 25% of the next 4% of each employee's  voluntary  contribution.
Additionally, the Company may make voluntary contributions to the Plan annually,
as  determined  by its Board of  Directors,  up to a maximum  aggregate  company
contribution  of 15% of  participants'  annual  compensation.  Participants  are
eligible for these voluntary contributions after at least 1,000 hours of service
in a 12 consecutive month period of employment.  All employer  contributions are
invested in the O'Reilly Automotive,  Inc. Stock Fund. Participants may elect to
allocate their  contributions to their account balances in various equity,  bond
or  fixed  income  funds or the  O'Reilly  Automotive,  Inc.  Stock  Fund,  or a
combination thereof.  During the year ended December 31, 2003, the Plan received
discretionary   contributions   from  the  Company  amounting  to  approximately
$2,300,000, not including matching contributions.

Each participant's  account is credited with the participant's  contribution and
an allocation of the Company's  contribution  and Plan earnings.  Allocations of
Company  contributions are based on participant  contributions and compensation.
Allocations  of Plan  earnings  are  based on  participants'  account  balances.
Forfeitures  of  terminated  participants'  non-vested  accounts  are applied to
administrative expenses and employer contributions. Total forfeitures at the end
of 2003,  amounting to $487,408,  were first applied to administrative  expenses
and then reduced employer contributions.

Participants   are   immediately   vested  with   respect  to  their   voluntary
contributions.  With respect to employer contributions,  participants become 20%
vested  after two years of service with the  Company.  Vesting  increases in 20%
increments annually to 100% after six years.

Participating  employees  are  entitled  to borrow  from the Plan the  lesser of
$50,000 or 50% of the employee's  vested account  balance at a rate equal to one
percentage point above the prime interest rate in effect, as reported in the The
Wall Street Journal, on the last business day of the

                                       5


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                    Notes to Financial Statements (Continued)

2.   Description of the Plan (continued)

month prior to the date the loan is made. Loans are repaid by payroll deductions
over a period no longer than five years.

Although  it has not  expressed  any intent to do so, the  Company has the right
under the Plan to discontinue its contributions at any time and to terminate the
Plan  subject  to the  provisions  of ERISA.  In the event of plan  termination,
participants will become 100% vested in their accounts.

Benefit distributions are payable in monthly payments to the beneficiary or in a
lump sum,  as  elected by the  participant.  At  December  31,  2003,  and 2002,
terminated  employees  had  approximately  $39,645 and  $212,352,  respectively,
included in net assets  available for benefits which were to be paid in 2004 and
2003,  respectively.  The Plan pays all  administrative  expenses.  During 2003,
administrative   expenses   totaled   $462,101  and  are  included  in  the  net
realized/unrealized   appreciation   in  fair  value  of   investments   in  the
accompanying Statement of Changes in Net Assets Available for Benefits.

3.   Investments

At December 31, 2003 and 2002, the Plan's investments are held by SunTrust, in a
bank-administered  trust fund.  SunTrust has authority for the purchase and sale
of investments based on participant discretion,  subject to certain restrictions
as specified in the trust agreement and in ERISA.

The fair value of individual investments that represent 5% or more of the Plan's
net assets are as follows:


                                                        December 31,
                                                   2003              2002
                                               -------------    -------------
                                                          
SunTrust common collective trusts:
  Classic Balanced Fund                        $   3,976,163    $   3,588,094
  Stable Asset Fund                                9,814,175        9,137,535
  Classic 500 Index Fund                           5,945,203        4,268,155
  Classic Investment Grade Bond Fund                       *        3,065,989
Registered investment company fund:
  O'Reilly Automotive, Inc. common stock:
  Participant Directed                            45,201,043       29,033,640

* Below 5% threshold



                                       6



                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                    Notes to Financial Statements (Continued)

3.   Investments (Continued)

During 2003, the Plan's investments (including  investments purchased,  sold, as
well as held,  during  the  year)  appreciated  (depreciated)  in fair  value as
follows:



                                                 Net Realized And
                                                    Unrealized
                                                   Appreciation
                                              (Depreciation) in Fair
                                               Value of Investments
Year ended December 31, 2003                  ----------------------
                                              
  Stable Asset Fund                              $     393,204
  Classic 500 Index Fund                             1,185,990
  Classic Investment Grade Bond Fund                   (11,340)
  Classic Balanced Fund                                301,695
  Classic Capital Appreciation Fund                    342,837
  Classic Life Vision-Moderate Growth                   31,554
  Classic Life Vision-Growth & Income                   31,024
  Classic Life Vision-Aggressive Growth                 29,918
  Franklin Small Cap Growth Fund                       131,559
  Fidelity Advisor Equity Income Fund                  260,859
  Templeton Growth Fund                                 96,954
  Fidelity Advisor Equity Growth Fund                   27,505
  Janus Worldwide Fund                                 239,923
  Classic Small Cap Fund                               202,808
  Classic Small Cap Growth Stock Fund                  102,082
  Classic Mid-cap Equity                               131,540
  Classic Value Income Stock Fund                      225,908
  American Century Value Advisor Fund                  132,622
  O'Reilly Automotive, Inc. common stock            16,163,386
                                                 -------------
                                                 $  20,020,028
                                                 =============



                                       7


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan
                              (Modified Cash Basis)

                    Notes to Financial Statements (Continued)


4.   Income Tax Status

The Plan has received a determination  letter from the Internal  Revenue Service
dated September 9, 2003, stating that the Plan is qualified under Section 401(a)
of the Internal Revenue Code (the "Code") and,  therefore,  the related trust is
exempt from taxation.  Subsequent to this issuance of the determination  letter,
the Plan was  amended.  Once  qualified,  the Plan is  required  to  operate  in
conformity with the Code to maintain its  qualification.  The Plan Administrator
believes  the  Plan  is  being  operated  in  compliance   with  the  applicable
requirements  of the  Code  and,  therefore,  believes  the Plan as  amended  is
qualified and the related trust is tax exempt.

5.   Related Party Transactions

Certain Plan investments are shares in registered  investment  companies managed
by SunTrust.  SunTrust is the Trustee as  described by the Plan and,  therefore,
these transactions qualify as party-in-interest transactions.


6.   Risks and Uncertanties

The Plan invests in various  investment  securities.  Investment  securities are
exposed to various risks such as interest rate,  market and credit risks. Due to
the level of risk associated with certain investment securities,  it is at least
reasonably  possible  that changes in the values of investment  securities  will
occur  in  the  near  term  and  that  such  changes  could  materially   affect
participants' account balances and the amounts reported in the statements of net
assets available for benefits.

                                       8



                              Supplemental Schedule
                              (Modified Cash Basis)





                                       9



                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

                               Schedule H, Line 4i
                    Schedule of Assets (Held at End of Year)
                              (Modified Cash Basis)

                                December 31, 2003



   Identity of Issue, Borrower,
    Lessor, or Similar Party                   Number of Shares       Cost      Current Value
--------------------------------------------  ------------------  ------------  --------------
                                                            
SunTrust common and collective trusts*:
      Stable Asset Fund                                           $  6,888,509  $  9,814,175
      Classic Investment Grade Bond Fund                             3,082,840     3,210,891
      Classic Balanced Fund                                          3,537,306     3,976,163
      Classic Capital Appreciation Fund                              2,276,391     2,147,746
      Classic Small Cap Fund                                           608,712       834,932
      Classic 500 Index Fund                                         5,513,202     5,945,203
      Classic Mid-Cap Equity                                           591,211       640,548
      Classic Small Cap Growth Stock Fund                              339,093       396,591
      Classic Value Income Stock Fund                                1,219,427     1,257,395
      Classic Life Vision-Moderate Growth                              265,893       284,343
      Classic Life Vision-Growth & Income                              191,833       208,286
      Classic Life Vision-Aggressive Growth                            172,380       187,382
Registered investment company funds:
      Fidelity Advisor Equity Income Fund                            1,130,702     1,240,965
      Fidelity Advisor Equity Growth Fund                              161,330       181,961
      Franklin Small Cap Growth Fund                                   515,032       540,373
      Templeton Growth Fund                                          1,674,154     1,769,495
     American Century Value Advisor Fund                               571,196       663,367
O'Reilly Automotive, Inc. common stock*        1,172,226            22,123,886    45,201,043
Participant loans (interest rates ranging
     from 5.00% to 10.5%)                                                   --     3,347,207
                                                                  ------------  ------------
                                                                  $ 50,863,097  $ 81,848,066
                                                                 =============  ============
* Party-in-interest to the Plan




                                       10


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

                                  EXHIBIT INDEX

Exhibit No.     Description
-----------     ----------------------------------------------
23.1            Consent of Ernst & Young LLP




                                       11


                            O'Reilly Automotive, Inc.
                         Profit Sharing and Savings Plan

                                  Exhibit 23.1

            Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form
S-8 No. 33-73892) pertaining to the O'Reilly Automotive, Inc. Profit Sharing and
Savings  Plan of our report dated June 8, 2004,  with  respect to the  financial
statements  and schedule of the O'Reilly  Automotive,  Inc.  Profit  Sharing and
Savings  Plan  included  in this  Annual  Report  (Form 11-K) for the year ended
December 31, 2003.




                                                /s/ Ernst & Young LLP
                                                ---------------------
Kansas City, Missouri
June 23, 2004